Motor-cycle rear-seat spring.



F. E. & R. A. PALIN.

MOTOR CYCLE REAR SEAT SPRING;

- APPLICATION FILED NOV. 6, 1911.

Patented May 14, 1912.

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F. E. & R. A. PALIN.

MOTOR CYCLE REAR SEAT SPRING.

APPLICATION TILED Nov. 6, 1911.

1,026,1 15. Patented May 14, 1912.

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COLUMBIA PLANoqRAPF COHWASHINGTON. n. c.

UNITED STATES PATENT OFFICE.

FRANK E. I-ALIN AND RONALD A. IPALIN, OF SAN MATEO, CALIFORNIA.

MOTOR-CYCLE REAR-SEAT SPRING.

T0 aZZ whom it may concern Be it known that we, FRANK E. PALIN andRONALD A. PALIN, citizens of the United States, residing at San Mateo,in the county of San Mateo and State of California, have invented a newand useful Motor-Cycle Rear-Seat Spring, of which the following is aspecification, in such full and clear terms as will enable those skilledin the art to construct and use the same.

This invention relates to a tandem spring for a motorcycle, the objectof which is to so secure the second seat to the motorcycle as to makethe same the most comfortable, possible to ride.

An object of the invention is to provide stirrups for the person sittingon the rear seat, which will move with the entire seat thus enabling therider to be much more comfortable than where no movement of the stirrupsis permitted.

Another object of the invention is to produce a spring support whichwill be protected from breakage, either on a downward thrust or upon anupward movement of the second seat.

Another object of the invention is to pr0- vide means whereby the heightof the seat may be adjusted to several diiferent sizes of motorcycles aswell as means for adjusting the flexibility of the spring to enablelight persons to use the same as well as heavy persons.

In the drawings in which the same numeral of reference is applied to thesame portion throughout the several views, Figure 1 is a side elevationof a portion of a motorcycle wheel and the frame work of the machineshowing the application thereto of the tandem spring. Fig. 2 is a rearelevation of the tandem spring, and Fig. 3 is a plan view thereof.

The numeral 1 represents the frame of the motorcycle, and 3 the rim ofthe wheel. The wheel is provided with the usual spokes 4 connected withthe hub 5, tire 6 and mud guard 7 On the side of the wheel is a largepulley 8 secured to the wheel by means of brackets 9, over which pulleythe driving belt 10 passes. At the upper portion of the frame 1, thereis shown the rear end of a horizontal bar 11, said bar having a threadedhole therein, in which a heavy tube 12 is threaded, a locknut 13 holdingsaid tube in the proper position. The tube 12 is curved Specification ofLetters Patent.

Application filed November 6, 1911.

Patented May 14, 1912. Serial No. 658,642.

downwardly so that its bore in the rear end lies in the proper plane forthe reception of a pin 14 on the front end of the tandem spring. The pin14 and tube 12 are secured together by means of a pin 15 driven througha hole passing through each of them. The pin 14; is integral with thespring 16, which spring has a projection at 17 for securing the rearseatin place. Above the spring 16 is a leaf 18 and below the spring 16is a leaf 19, the latter being curved upwardly at the front end as shownat 20, to securely hold it in place. The three springs are securedtogether by means of two clips 21, said clips holding a strap 22 inplace above the springs. This strap 22 has a U shaped yoke 23 passingtherethrough, the lower ends of which yoke have holes therein foradjusting the position of the spring with respect to the supportingbracket 24. This bracket 24, one on each end of the yoke 23, is boltedclirectly to the axle of the rear wheel and it is also bolted to a link25, which extends rearwardly therefrom, there being one link secured oneach bracket 24. At the rear end of the springs there is a clip 26,which clip is suitably secured to said springs to hold them together andits upper portion is crossed over the top of the yoke 27 said yokehaving stirrups 28 at the bottom thereof. A clip 29 is secured aroundeach limb of the yoke and is pivotedly secured to the rear end of thelink 25.

The result of the above construction is that upon any movement of therear end of the springs, the stirrups will sink as well as the seat,thus making the riding easier for the person upon the rear seat. Butshould it be necessary to raise or lower the springs to accommodatemachines with larger or smaller wheels, all that is neces sary is toshift the position of the lower ends of the yoke 23, up or down as maybe necessary. If it is desired to carry a very heavy person, the yoke 23may be moved to the rear a suitable amount. When so moved to the rearthe spring will be stiffer and will not have as much movement with agiven load as it has when the yoke 23 is placed nearer the frontthereof.

It is, of course, understood that the device may be suitably enameled ornickeled, as may seem necessary to the manufacturer.

Having thus described our invention what we claim as new and desire tosecure by Letters Patent of the United States is as follows:

1. In a motorcycle tandem attachment, a leaf spring, means to securesaid spring near one end to the frame of the motorcycle, a yoke havingfoot rests secured to the rear end of the spring and pivoted linksconnected to the frame of the motorcycle and to the yoke, to permit saidyoke to vibrate with said spring, substantially as described.

2. In a motorcycle tandem attachment, a leaf spring having means at oneend to secure the same to the frame of the motorcycle and a projectionat the opposite end for securing a seat thereto, leaf springs secured tothe aforesaid spring above and below the same, a yoke connected to thespring and having stirrups at its lower ends and pivoted links connectedto the frame of the machine and to said stirrup yoke for permittingvibration of said stirrups with the spring, substantially as described.

3. In a motorcycle tandem attachment, a spring having means at one endto secure the same to a motorcycle and a projection at the other end forsecuring a seat thereto, leaf springs above and below said spring, ayoke having stirrups at the lower end thereof and secured to the end ofsaid spring, clips secured to said yoke and links pivotally connectingsaid yoke to said motorcycle frame for permitting vibration of saidsprings, substantially as described.

1. In a motorcycle tandem attachment, a motorcycle frame, a springhaving a projection at each end, the former to secure the spring to amotorcycle frame and the latter to secure a seat to, a yoke to connectthe spring and the frame at the front end of the former, and adjustablelongitudinally of the spring, a yoke supported on the rear end of thespring and having stirrups at the lower end and pivoted links connectingsaid frame and said yoke adjacent the stirrups, substantially asdescribed.

5. In a motor cycle tandem attachment, a motor cycle frame, a springsecured to said frame, a seat on said spring, a yoke having stirrupsdepending from said spring, links connected to said yoke, and a bracketsecured to the frame of the machine to which the links are pivoted,substantially as described.

In testimony whereof we have hereunto set our hands this 21st day ofOctober A. D. 1911, in the presence of the two subscribed witnesses.

FRANK E. PALIN. RONALD A. PALIN. lVitnesses Josnrn B. GORDON, JOHN JOI-INS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

